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package hu.bme.mit.inf.dslreasoner.viatra2logic
import hu.bme.mit.inf.dslreasoner.ecore2logic.Ecore2Logic
import hu.bme.mit.inf.dslreasoner.ecore2logic.Ecore2Logic_Trace
import hu.bme.mit.inf.dslreasoner.logic.model.builder.LogicProblemBuilder
import hu.bme.mit.inf.dslreasoner.logic.model.builder.TracedOutput
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.Term
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.Variable
import hu.bme.mit.inf.dslreasoner.logic.model.logicproblem.LogicProblem
import java.util.LinkedList
import java.util.Map
import org.eclipse.emf.common.util.Enumerator
import org.eclipse.emf.ecore.EAttribute
import org.eclipse.emf.ecore.EClass
import org.eclipse.emf.ecore.EReference
import org.eclipse.emf.ecore.EStructuralFeature
import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey
import org.eclipse.viatra.query.runtime.emf.types.EDataTypeInSlotsKey
import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey
import org.eclipse.viatra.query.runtime.matchers.psystem.PConstraint
import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Inequality
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.NegativePatternCall
import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.BinaryTransitiveClosure
import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.ConstantValue
import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall
import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint
import static extension hu.bme.mit.inf.dslreasoner.util.CollectionsUtil.*
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.AggregatorConstraint
import org.eclipse.viatra.query.runtime.matchers.aggregators.DoubleSumOperator
import org.eclipse.viatra.query.runtime.matchers.aggregators.IntegerSumOperator
import org.eclipse.viatra.query.runtime.matchers.aggregators.LongSumOperator
import org.eclipse.viatra.query.runtime.matchers.aggregators.ExtremumOperator
import org.eclipse.viatra.query.runtime.matchers.aggregators.ExtremumOperator.Extreme
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.PatternMatchCounter
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExpressionEvaluation
class Constraint2Logic {
val extension LogicProblemBuilder builder = new LogicProblemBuilder
val Ecore2Logic ecore2Logic
val ExpressionEvaluation2Logic expressionEvaliation2Logic = new ExpressionEvaluation2Logic
val expressionExtractor = new XExpressionExtractor
new(Ecore2Logic ecore2Logic) {
this.ecore2Logic = ecore2Logic
}
def dispatch Term transformConstraint(Equality constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
constraint.who.lookup(variable2Variable)
==
constraint.withWhom.lookup(variable2Variable)
}
def dispatch Term transformConstraint(ExportedParameter constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
return null
}
def dispatch Term transformConstraint(Inequality constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
constraint.who.lookup(variable2Variable)
!=
constraint.withWhom.lookup(variable2Variable)
}
def dispatch Term transformConstraint(NegativePatternCall constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
val parameterSubstitution = new LinkedList
for(index : 0..<constraint.actualParametersTuple.size) {
val variable = constraint.actualParametersTuple.get(index) as PVariable
parameterSubstitution += variable.lookup(variable2Variable).toTerm
}
val res = constraint.referredQuery.lookup(viatra2LogicTrace.query2Relation).call(parameterSubstitution)
return res.Not
}
def dispatch Term transformConstraint(BinaryTransitiveClosure constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
transitiveClosure(
constraint.referredQuery.lookup(viatra2LogicTrace.query2Relation),
(constraint.variablesTuple.get(0) as PVariable).lookup(variable2Variable).toTerm,
(constraint.variablesTuple.get(1) as PVariable).lookup(variable2Variable).toTerm
)
}
def dispatch Term transformConstraint(ConstantValue constant,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
val tuple = constant.variablesTuple
if(tuple.size == 1) {
val variable = tuple.get(0) as PVariable
//println(variable.name + " == " + constant.supplierKey + "["+constant.supplierKey.class.name+"]")
val translatedConstant = transformConstantValue(constant.supplierKey,ecore2LogicTrace,viatra2LogicTrace,config);
return variable.lookup(variable2Variable) == translatedConstant
} else throw new AssertionError
}
private def dispatch transformConstantValue(
Enumerator enumerator,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Viatra2LogicConfiguration config)
{
ecore2Logic.Literal(ecore2LogicTrace.trace,enumerator)
}
private def dispatch transformConstantValue(
Integer value,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Viatra2LogicConfiguration config)
{
return value.asTerm
}
private def dispatch transformConstantValue(
Boolean value,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Viatra2LogicConfiguration config)
{
return value.asTerm
}
private def dispatch transformConstantValue(
String value,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Viatra2LogicConfiguration config)
{
return value.asTerm
}
private def dispatch transformConstantValue(
Double value,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Viatra2LogicConfiguration config)
{
return value.asTerm
}
private def dispatch transformConstantValue(
Float value,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Viatra2LogicConfiguration config)
{
return value.asTerm
}
private def dispatch transformConstantValue(Object other,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Viatra2LogicConfiguration config)
{
throw new UnsupportedOperationException('''Unknown constant «other»:«other.class.name»''')
}
def dispatch Term transformConstraint(PositivePatternCall constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
val parameterSubstitution = new LinkedList
for(index : 0..<constraint.variablesTuple.size) {
val variable = constraint.variablesTuple.get(index) as PVariable
parameterSubstitution += variable.lookup(variable2Variable).toTerm
}
val res = constraint.referredQuery.lookup(viatra2LogicTrace.query2Relation).call(parameterSubstitution)
return res
}
def dispatch Term transformConstraint(TypeConstraint constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
val tuple = constraint.variablesTuple
if(tuple.size == 1) {
val typeConstraint = constraint.equivalentJudgement.inputKey
if(typeConstraint instanceof EClassTransitiveInstancesKey) {
val type = typeConstraint.emfKey
val variable = tuple.get(0) as PVariable
return transformTypeConstraint(type,variable,ecore2LogicTrace,variable2Variable,viatra2LogicTrace)
} else if(typeConstraint instanceof EDataTypeInSlotsKey) {
// If the type is a primitive type or EEnum, then instanceof is an unnecessary constraint
return null
}
} else if(tuple.size == 2) {
val type = (constraint.equivalentJudgement.inputKey as EStructuralFeatureInstancesKey).emfKey
val src = tuple.get(0) as PVariable
val trg = tuple.get(1) as PVariable
return transformPathConstraint(type,src,trg,ecore2LogicTrace,variable2Variable,viatra2LogicTrace)
} else throw new IllegalArgumentException('''unknown tuple: «tuple»''')
}
def Term transformTypeConstraint(
EClass type,
PVariable variable,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicTrace viatra2LogicTrace)
{
InstanceOf(
variable.lookup(variable2Variable),
ecore2Logic.TypeofEClass(ecore2LogicTrace.trace,type))
}
def Term transformPathConstraint(
EStructuralFeature feature,
PVariable src, PVariable trg,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicTrace viatra2LogicTrace)
{
if(feature instanceof EReference) {
return ecore2Logic.IsInReference(ecore2LogicTrace.trace,
src.lookup(variable2Variable),
trg.lookup(variable2Variable),
feature)
} else if(feature instanceof EAttribute) {
return ecore2Logic.IsAttributeValue(ecore2LogicTrace.trace,
src.lookup(variable2Variable),
trg.lookup(variable2Variable),
feature)
} else {
throw new IllegalArgumentException('''Unsupported path expression: «feature.class.name»''')
}
}
def dispatch Term transformConstraint(TypeFilterConstraint constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
val tuple = constraint.variablesTuple
if(tuple.size == 1) {
val typeConstraint = constraint.equivalentJudgement.inputKey
if(typeConstraint instanceof EClassTransitiveInstancesKey) {
val type = typeConstraint.emfKey
val variable = tuple.get(0) as PVariable
return transformTypeConstraint(type,variable,ecore2LogicTrace,variable2Variable,viatra2LogicTrace)
} else if(typeConstraint instanceof EDataTypeInSlotsKey) {
// If the type is a primitive type or EEnum, then instanceof is an unnecessary constraint
return null
}
} else if(tuple.size == 2) {
val type = (constraint.equivalentJudgement.inputKey as EStructuralFeatureInstancesKey).emfKey
val src = tuple.get(0) as PVariable
val trg = tuple.get(1) as PVariable
return transformPathConstraint(type,src,trg,ecore2LogicTrace,variable2Variable,viatra2LogicTrace)
} else throw new IllegalArgumentException('''unknown tuple: «tuple»''')
}
def dispatch Term transformConstraint(AggregatorConstraint constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
val logicReferred = constraint.referredQuery.lookup(viatra2LogicTrace.query2Relation)
val parameterSubstitution = new LinkedList
for(index : 0..<constraint.actualParametersTuple.size) {
val term = (constraint.actualParametersTuple.get(index) as PVariable).lookup(variable2Variable)
parameterSubstitution += term
}
val aggregatorIndex = constraint.aggregatedColumn
val logicResultVariable = constraint.resultVariable.lookup(variable2Variable)
val type = constraint.aggregator.operator
if(type === null) {
return Count(logicReferred,parameterSubstitution,logicResultVariable)
} else if(type instanceof IntegerSumOperator || type instanceof DoubleSumOperator || type instanceof LongSumOperator){
return Sum(logicReferred,parameterSubstitution,aggregatorIndex,logicResultVariable)
} else if(type instanceof ExtremumOperator) {
if(type.name == Extreme.MIN.name.toLowerCase) {
return Min(logicReferred,parameterSubstitution,aggregatorIndex,logicResultVariable)
} else if(type.name == Extreme.MAX.name.toLowerCase){
return Max(logicReferred,parameterSubstitution,aggregatorIndex,logicResultVariable)
} else {
throw new UnsupportedOperationException('''Unkown Extremum aggregator type: «type.name»''')
}
} else {
throw new UnsupportedOperationException('''Unkown aggregator type: «type.name»''')
}
}
def dispatch Term transformConstraint(PatternMatchCounter constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
val logicReferred = constraint.referredQuery.lookup(viatra2LogicTrace.query2Relation)
val parameterSubstitution = new LinkedList
for(index : 0..<constraint.actualParametersTuple.size) {
val term = (constraint.actualParametersTuple.get(index) as PVariable).lookup(variable2Variable)
parameterSubstitution += term
}
val logicResultVariable = constraint.resultVariable.lookup(variable2Variable)
return Count(logicReferred,parameterSubstitution,logicResultVariable)
}
def dispatch Term transformConstraint(ExpressionEvaluation constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
val outputVariable = constraint.outputVariable
val expression = expressionExtractor.extractExpression(constraint.evaluator)
return expressionEvaliation2Logic.transformEval(outputVariable,expression,variable2Variable)
}
def dispatch Term transformConstraint(PConstraint constraint,
TracedOutput<LogicProblem, Ecore2Logic_Trace> ecore2LogicTrace,
Viatra2LogicTrace viatra2LogicTrace,
Map<PVariable, Variable> variable2Variable,
Viatra2LogicConfiguration config)
{
throw new UnsupportedOperationException('''Unkown constraint type: «constraint.class.name»''')
}
}
|
